Merge branch 'master' of https://github.com/metabase/metabase into upgrade-webpack

docs/developers-guide.md

frontend/src/metabase/components/AdminAwareEmptyState.jsx

...end/src/metabase/new_query/containers/NewQueryOptions.jsx

frontend/src/metabase/new_query/new_query.js

frontend/src/metabase/new_query/selectors.js

frontend/src/metabase/reference/databases/DatabaseList.jsx

...rc/metabase/reference/databases/NoDatabasesEmptyState.jsx

frontend/src/metabase/reference/metrics/MetricList.jsx

frontend/src/metabase/reference/segments/SegmentList.jsx

frontend/src/metabase/routes.jsx

frontend/src/metabase/xray/SimpleStat.jsx

frontend/test/__runner__/run_integrated_tests.js

frontend/test/__runner__/test_db_fixture.db.h2.db

frontend/test/__support__/integrated_tests.js

frontend/test/__support__/sample_dataset_fixture.js

frontend/test/admin/databases/DatabaseEditApp.integ.spec.js

frontend/test/admin/databases/DatabaseListApp.integ.spec.js

frontend/test/admin/datamodel/FieldApp.integ.spec.js

frontend/test/admin/datamodel/datamodel.integ.spec.js

frontend/test/admin/people/people.integ.spec.js